英语词汇“knock at”的读音、翻译、释义、用法及例句-开邑网

词汇	knock at
释义	knock atknock at1.■打, 捶, 敲He went upstairs and knocked at the door.他上楼敲门。Opportunity knocks at the door only once.机不可失, 时不再来。
随便看	randomized randomized arrangement randomized block randomized block design randomized block experiment randomized blocks randomized blocks design randomized complete-block design randomized decision function randomized estimator randomized jitter randomized policy randomized program test randomized replication randomized sampling randomized table randomized test randomizer randomize routine randomizing randomizing algorithm randomizing scheme randomizing technique random jamming random joint

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